Engines



gin Fe Patented C. STRAUB. l Reversing Geer for Steam En v 6 ff,

tlniTnn STaTns FATTNT Ormes.

CONRAD STRAUB, OF MANSFIELD, OHIO, ASSIGNOR TO THE AULTMAN AND TAYLOR COMPANY, OF SAME PLACE.

REVERSlNG-GEAR FOR STEAM-ENGINES.

SPECIFICATION forming part of Letters Patent No. 237,925, dated February 15, 1881.

Application filed December S, 1880. (Model.) i

.To all whom it may concern.: cal socket, C2, formedin it for the reception of Be it known that I, CONRAD STRAUB,4 of a sliding rod or pin, D. The end wall of this Mansfield, county of Richland, State of Ohio, socket is perforated at c3, and a reduced eX- haveinvented certain new and usefulImprovetension or shank, D', of the pin D passes ments in Reversing-Gear for Steam-Engines, through said perforation andis connected with 5 5 of which the following is a full, clear, and exa sliding collar, E, on the shaft A, as shown.

act description, reference being had to the ac- Behind the body D and surrounding the companying drawings, making part of this shank D' of the sliding pin within the socket specication, in which- CZ is a spiral spring, d, the tension of which is 1o Figure l represents a section through the exerted to force the pin outward, causing it to 6o eccentric on the main or crank shaft of the enenter the thinible or socket in the adjacent gine and through the reversing gear or mechside ot' the eccentric. anism connected therewith. Fig. 2 is a section The collar E is mounted loosely on shaft A,

' taken on the line x x, Fig. l. Fig. 3 is a face adapting it to slide longitudinally on said or side view of the eccentric detached, showshaft, but it rotates with the shaft, owing to 65 ing the arrangement of sockets or thimbles its connection therewith, through the pin D therein; and Fig. 4t is a side elevation of the and collar C. The end ofthe shank D passes hub or collar on the main shaft which carries through a perforated lugl or ear. c, on the colthe sliding clutch-pin. lar E, und is held connected therewith by a zo The invention relates to a novel means for pin, c', or other suitable fastening device. The 7o reversing the engine or the direction of rotacollar E has a groove at E' in its periphery, tion of the main engineshaft; and it consists and the forks or arms ff' of a lever, F, enter in providing the eccentric, mounted loosely on said groove, engaging the lever with the colg said shaft, with sockets or thimbles, adapting lar, but permitting the latter to rotate freely it to be engaged with the shaft through the with the shaft. The lever is pivoted, atfz, to 75 medium of a sliding pinror bolt moving in a any suitable stationary arm or support on the hub or collar fixed to and rotating' with the engine, the arrangement being such that the shaft, whereby said eccentric can be coupled attendant,byoperatingsaidlever,can,through to the shaft on either side for reversing the the connection of the sliding collar E with the 3o throw of the valve-rod relative to said shaft, pin D, overcome the tension of the spring d 8o and thereby reversing the direction of rotation and withdraw said pin from engagement with of the shaft; also, in certain details of conthe eccentric, thereby releasing the latterfrom struction and arrangement of parts hereinafthe shaft. Thus, supposing the eccentric to be ter fully described. coupled to its shaft through the pin D in col- In the accompanying drawings,Arepresents lar C entering the socket or thimble a in the 85 the main exigirle or crank shaft, and B the ececcentric, when said pin is withdrawn the shaft centricforactuatingthevalve, mountedloosely moves on, while the rotation of the eccentric, thereon. One side ofthis eccentric has ahub owing to its connection with the valve, is inor collar, B', formed upon it, in the outer face stantly stopped until the pin D comes oppo- 40 of which and upon opposite sides ofthe shaft site to and enters the socket or thimble a', 9o A are formed sockets for the reception'of two bringing the eccentric upon the opposite vside steel thimbles, a ci', (see Figs. 1 and 3,) or if of the shaft and reversing the relation of the preferred these sockets or thimblcs may be valve thereto, and consequently reversing the formed in or applied directly to the eccentric. engine or the direction of rotation of the en- On the shaft A, adjacent to the hub B', is gine-shaft, as willbereadilyunderstood. When 95 secured a collar, C, held in place upon and sethe pin has been withdrawn from engagement cured to the shaft, so as to rotate with it, by with the eccentric the lever is released by the one or more set-screws, b, or other equivalent attendant and the pin is pressed, by the tenastening device. One side of the collar C is sion of its spring d, against the side of the ecenlarged (see Fig. 4) at C', and has a cylindri centric until it reaches the opposite socket or loo thimble, when it is instantly forced into the same by the action of the spring again engaging the eccentric with its shaft in reversed relation thereto.

5 It will be apparent that moditications may be made in the forni of the parts from that shown and described Without departing from my invention.

Having described my invention, I claim- 1o 1. The combination, with the main engine or crank shaft, of the iXed hub or collar, provided with the sliding pin or bolt, and the eccentric mounted loosely on said shaft and provided With the sockets or thilnblcs, substan- 1 5 tially as and for the purpose described.

CONRAD STRAUB.

Witnesses HUNTINGTON BROWN, J. E. BROWN. 

